CN104870499B - Copolymer, photosensitive polymer combination containing this copolymer and resin molding - Google Patents

Copolymer, photosensitive polymer combination containing this copolymer and resin molding Download PDF

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Publication number
CN104870499B
CN104870499B CN201380064319.4A CN201380064319A CN104870499B CN 104870499 B CN104870499 B CN 104870499B CN 201380064319 A CN201380064319 A CN 201380064319A CN 104870499 B CN104870499 B CN 104870499B
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methyl
photosensitive polymer
polymer combination
copolymer
ester
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CN104870499A (en
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小林将行
海野笃
辻村优实
远藤充雄
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Lishennoco Co ltd
Resonac Holdings Corp
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Showa Denko KK
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    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/004Photosensitive materials
    • G03F7/022Quinonediazides
    • G03F7/023Macromolecular quinonediazides; Macromolecular additives, e.g. binders
    • G03F7/0233Macromolecular quinonediazides; Macromolecular additives, e.g. binders characterised by the polymeric binders or the macromolecular additives other than the macromolecular quinonediazides
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10Esters
    • C08F220/34Esters containing nitrogen, e.g. N,N-dimethylaminoethyl (meth)acrylate
    • C08F220/36Esters containing nitrogen, e.g. N,N-dimethylaminoethyl (meth)acrylate containing oxygen in addition to the carboxy oxygen, e.g. 2-N-morpholinoethyl (meth)acrylate or 2-isocyanatoethyl (meth)acrylate
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00Use of organic ingredients
    • C08K5/04Oxygen-containing compounds
    • C08K5/07Aldehydes; Ketones
    • C08K5/08Quinones

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  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Materials For Photolithography (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

The copolymer of the present invention contains the repetitive from (methyl) crylic acid hydroxylphenyl ester and the repetitive from the unsaturated compound with blocked isocyanate ester group.Preferably comprise the above-mentioned repetitive from (methyl) crylic acid hydroxylphenyl ester and the above-mentioned repetitive from the unsaturated compound with blocked isocyanate ester group of 10mol%~70mol% of 30mol%~90mol%.The thermochromism transparent, resistance to of the photosensitive polymer combination of the copolymer containing the present invention and excellent electrical property, coating, developability, curable and storage stability are good.

Description

Copolymer, photosensitive polymer combination containing this copolymer and resin molding
Technical field
The present invention relates to a kind of photosensitive polymer combination, in particular it relates to a kind of photosensitive polymer combination, it is suitable Form the protecting film of electronic unit, planarization film or the interlayers such as liquid crystal display cells, integrated circuit component, solid-state image pickup Dielectric film, suitably forms lenticule or microlens array, suitably forms the light scattered reflection film of liquid crystal display cells, tropism control With projection or interval, suitably form color filter or suitably form optical waveguide.
Background technology
In the past, it was used for preventing TFT type liquid crystal display cells, magnetic head element, integrated circuit component, solid-state image unit in formation The deterioration of the electronic units such as part or the protecting film of damage, or form the interlayer of insulation between the wiring for making to be configured to stratiform During dielectric film, use photosensitive polymer combination all the time.Wherein, in the case of liquid crystal display cells, by then passing through Interlayer dielectric is formed the electrically conducting transparent line layers such as ITO, and forms the operation of liquid crystal orientation film further above and make Making, therefore interlayer dielectric can be exposed under hot conditions in the formation process of ELD, also can be exposed in shape Become in the anticorrosive additive stripping liquid controlling used in electrode pattern, it is therefore desirable to they are had sufficient resistance.Therefore, for cambium layer Between the photosensitive polymer combination of dielectric film, it is desirable to be able to form that developability is excellent and the transparency, thermostability, flatness, attaching Property, chemical resistance and the resin molding of excellent electrical property.
On the other hand, as chip providing color filters (on-chip such as facsimile machine, electronic copier, solid-state image pickups Colour filter) imaging optical system or the material of optical system of the joints of optical fibre, employ and there are 3~100 μ The lenticule of the lens diameter of about m or make the regularly arranged microlens array of these lenticulees.Wherein, for The CCD element used in digital camera etc., in recent years, more miniaturization while improving pixel count so that every 1 CCD unit The light receiving area of part reduces.Accordingly, as the means of raising light acceptance amount, attempt being formed lens-shaped on CCD element Lenticular method.As the lenticule for CCD element, it is known that make photoresist exposure, development form bump maps Case, by making it flow so that temperature more than glass transition point heats this relief pattern, utilizes surface tension to form hemisphere The lenticular method of shape.Accordingly, as forming lenticular photosensitive polymer combination, need excellent developability, transparent Property, fluidity of molten and thermostability, from the point of view of collection luminosity, need high index of refraction.
As above-mentioned photosensitive polymer combination, such as, patent documentation 1 has been recorded a kind of photosensitive resin composition Thing, it contains (a) unsaturated carboxylic acid and the copolymer of the polymerizable unsaturated compound with epoxy radicals, (b) unsaturated carboxylic acid With compound and (d) organic solvent that the copolymer of other monoolefine unsaturated compounds, (c) have quinone diazido. It addition, recorded a kind of photosensitive polymer combination in patent documentation 2, it contains (a) unsaturated carboxylic acid and has epoxy radicals The copolymer of polymerizable unsaturated compound, (b) phenylethylene and the copolymer of unsaturated carboxylic acid, (c) there is quinone two nitrine The compound of base and (d) organic solvent.
Having recorded a kind of radiation-sensitive resin composition in patent documentation 3, it contains [A] unsaturated carboxylic acid and has The unsaturated compound of epoxy radicals and the copolymer of other olefines unsaturated compounds and [B] specifically phenols chemical combination Thing and the condensation substance of 1,2-naphthoquinone two nitrine sulfamic acid halide.
It addition, recorded a kind of photosensitive polymer combination in patent documentation 4 and 5, it contains unsaturated carboxylic acid and fat Ring type has copolymer and the 1,2-naphthalene quinone di-azide sulfonic acid ester of the unsaturated compound of epoxy radicals.
The common part of above-mentioned existing photoresist is, all employ the unsaturated carboxylic acid conducts such as methacrylic acid Manifest alkali-soluble composition.But, these photoresists also have following problem, due to them and the material with phenolic hydroxyl group Comparing, acidity is high, in addition to the difficult management of developability, with the reactive excellent another side of epoxy radicals, its border of developing (development margin) and storage stability are insufficient.Although this problem is by using list as part copolymer composition Olefines unsaturated compound and improved, but due to its be formed scum, therefore be not enough to constitute solution.
It addition, recorded a kind of photosensitive polymer combination in patent documentation 6, it contains (A) hydroxy styrenes and first The copolymer of base acrylic acid methyl ester., (B) have compound and (C) thermosetting resin of quinone diazido.This resin combination It is characterised by, uses hydroxy styrenes as manifesting alkali-soluble composition.But, although this photosensitive polymer combination is due to tool There is phenolic hydroxyl group, be effective as solving the problems referred to above point, but there is the defect coloured because of heating.
It addition, recorded a kind of photosensitive polymer combination in patent documentation 7, it contains and contains hydroxyl as polymeric composition Base phenyl (methyl) acrylate and have epoxy radicals unsaturated compound copolymer, there is the chemical combination of quinone diazido Thing.Although the technical problem that this photosensitive polymer combination is able to overcome above-mentioned photosensitive polymer combination to be had and Develop, but its electrical property and resistance to thermochromism are not enough.
Prior art literature
Patent documentation
Patent documentation 1: JP 2003-330180 publication
Patent Document 2: JP 2005-107314 publication
Patent Document 3: JP 2004-170566 publication
Patent Document 4: JP 2003-76012 publication
Patent Document 5: JP 2005-49691 publication
Patent Document 6: Unexamined Patent 5-158232 publication
Patent Document 7: JP 2007-33518 publication
Summary of the invention
The technical problem to be solved in the present invention
In view of the foregoing, it is an object of the invention to provide a kind of thermochromism transparent, resistance to and excellent electrical property, and The photosensitive polymer combination that coating, developability, curable and storage stability are good, and provide one to be used for manifesting this The copolymer of a little characteristics.
Solve the technological means of technical problem
The present inventor etc. conduct in-depth research in order to achieve the above object, found that containing from (first Base) crylic acid hydroxylphenyl ester repetitive and from the repetitive of the unsaturated compound with blocked isocyanate ester group Copolymer can realize above-mentioned purpose, thus completes the present invention.
That is, the present invention following [1]~[9] are shown.
[1] a kind of copolymer, it is characterised in that containing from (methyl) crylic acid hydroxylphenyl ester repetitive and from There is the repetitive of the unsaturated compound of blocked isocyanate ester group.
[2] according to copolymer described in [1], it is characterised in that containing described in 30mol%~90mol% from (first Base) repetitive of crylic acid hydroxylphenyl ester and the described of 10mol%~70mol% be from having blocked isocyanate ester group not The repetitive of saturated compounds.
[3] according to copolymer described in [1] or [2], it is characterised in that described in there is the unsaturation of blocked isocyanate ester group Compound is block (methyl) acrylic acid 2-isocyano group ethyl ester (2-isocyanatoethyl methacrylate).
[4] according to [1] to the copolymer according to any one of [3], it is characterised in that described block is by methyl ethyl ketone The block that oxime causes.
[5] according to [1] to the copolymer according to any one of [4], it is characterised in that described in there is blocked isocyanate ester group Unsaturated compound be 2-(O-[1'-methyl propylene amino] carboxyamino) ethyl (methyl) acrylate.
[6] a kind of photosensitive polymer combination, it is characterised in that containing with good grounds [1] to the copolymerization according to any one of [5] Thing and there is the compound of quinone diazido.
[7] according to the photosensitive polymer combination described in [6], it is characterised in that relative to the described copolymerization of 100 mass parts Thing, it contains the compound described in 5~60 mass parts with quinone diazido.
[8] according to the photosensitive polymer combination described in [6] or [7], it is characterised in that relative to the composition beyond solvent Total amount 100 mass parts, it contains the solvent of 30~4000 mass parts.
[9] a kind of resin molding, it is characterised in that [6] are coated with to the photosensitive polymer combination according to any one of [8] On substrate, it is dried and obtains.
Invention effect
In accordance with the invention it is possible to provide a kind of thermochromism transparent, resistance to and excellent electrical property, and coating, developability, Curable and the good photosensitive polymer combination of storage stability, and can provide a kind of for manifesting being total to of these characteristics Polymers.
Detailed description of the invention
Below the photosensitive polymer combination of the present invention is described in detail.
Additionally, in the range of description and claims, (methyl) acrylate is methacrylate or propylene Acid esters.
In the photosensitive polymer combination of the present invention, the copolymer [A] contained as neccessary composition including: from (a1) The repetitive of (methyl) crylic acid hydroxylphenyl ester and there is the weight of unsaturated compound of blocked isocyanate ester group from (a2) Multiple unit.
As the object lesson of (a1) (methyl) crylic acid hydroxylphenyl ester, acrylic acid o-hydroxy ester, propylene can be enumerated Hydroxylphenyl ester, methyl between hydroxylphenyl ester, acrylic acid para hydroxybenzene ester, methacrylic acid o-hydroxy ester, methacrylic acid between acid Acrylic acid para hydroxybenzene ester etc..They may be used alone, two or more kinds can also be used in combination.It addition, among them, excellent Select methacrylic acid para hydroxybenzene ester.
In copolymer [A], preferably comprise 30mol%~90mol% from (a1) (methyl) crylic acid hydroxylphenyl ester Repetitive, more preferably contain 40mol%~80mol%.If the repetition from (a1) (methyl) crylic acid hydroxylphenyl ester Unit is less than 30mol%, then alkali solubility may become not enough, on the other hand, if more than 90mol%, possibly cannot be formed good Good pattern.
(a2) there is the unsaturated compound of blocked isocyanate ester group, easily by making the unsaturation with NCO Compound reacts with known or well-known block agent, makes NCO carry out block and obtain.As having isocyanide The unsaturated compound of perester radical, can enumerate (methyl) acrylic acid 2-isocyano group ethyl ester, isopropenyl-alpha, alpha-dimethylbenzyl Isocyanates etc. have the ethylenically unsaturated compounds of NCO.As block agent, preferably alkyl ketone oximes, phenols, Alcohols, pyrazoles, beta-diketon class and lactams, more preferably alkyl ketone oximes, phenols, alcohols and pyrazoles, most preferably alkane Base ketoxime class and pyrazoles.As the object lesson of the unsaturated compound with blocked isocyanate ester group, 2-(O-can be enumerated [1'-methyl propylene amino] carboxyamino) ethyl propylene acid esters, 2-(O-[1'-methyl propylene amino] carboxyamino) second Methyl acrylate, 2-[(3,5-dimethyl pyrazole oxazolyl) carbonylamino] ethyl propylene acid esters, 2-[(3,5-dimethyl pyrazole Base) carbonylamino] ethylmethyl acrylate, 2-[(phthalimide) carbonylamino] ethyl propylene acid esters, 2-be [(adjacent Phthalimide) carbonylamino] ethylmethyl acrylate, 2-[(butanimide) carbonylamino] ethyl propylene acid esters, (methyl) acrylic acid 2-isocyanide of the NCO blocks such as 2-[(butanimide) carbonylamino] ethylmethyl acrylate Base ethyl ester, 2-(O-[1'-methyl propylene amino] carboxyamino) 3-isopropenyl-α, alpha-alpha-dimethyl benzyl ester, 2-(O-[1'-first Base propylidene amino] carboxyamino) 4-isopropenyl-bis (alpha, alpha-dimethylbenzyl) ester, 2-[(3,5-dimethyl pyrazole oxazolyl) carbonyl ammonia Base] 3-isopropenyl-bis (alpha, alpha-dimethylbenzyl) ester, 2-[(3,5-dimethyl pyrazole oxazolyl) carbonylamino] 4-isopropenyl-α, α-two Isopropenyl-bis (alpha, alpha-dimethylbenzyl) the based isocyanate of the isocyano group ester group blocks such as methyl benzyl ester.They can be used alone, also Can be applied in combination with two or more.It addition, among them, from the point of view of copolymerizable, (the first of preferred isocyanate block Base) acrylic acid 2-isocyano group ethyl ester.
In copolymer [A], preferably comprise 10mol%~70mol% has blocked isocyanate ester group from (a2) The repetitive of unsaturated compound, more preferably contains 20mol%~60mol%.If there is blocked isocyanate from (a2) The repetitive of the unsaturated compound of ester group is less than 10mol%, then thermostability, chemical resistance and electrical property may reduce, On the other hand, if more than 70mol%, then alkali solubility may become not enough.
Copolymer [A] both can be only to be had blocked isocyanate ester group by (a1) (methyl) crylic acid hydroxylphenyl ester and (a2) The copolymer that formed of unsaturated compound, it is also possible to be that to be had block by (a1) (methyl) crylic acid hydroxylphenyl ester and (a2) different The copolymerization that the unsaturated compound copolymerization of cyanic acid ester group obtains and contains other ethylenically unsaturated compounds as copolymer composition Thing.As other unsaturated compounds, such as acrylic acid, methacrylic acid .beta.-methylacrylic acid, maleic acid, fumaric acid, lemon can be enumerated Health acid, mesaconic acid, itaconic acid, maleic anhydride, fumaric acid anhydride, citraconic anhydride, mesaconic acid acid anhydride, itaconic anhydride, vinyl benzoate, Between (methyl) acrylic acid neighbour's carboxyl phenyl ester, (methyl) acrylic acid, carboxyl phenyl ester, (methyl) acrylic acid are to carboxyl phenyl ester, adjacent carboxylic benzene Base (methyl) acrylamide, a carboxy phenyl (methyl) acrylamide, to carboxy phenyl (methyl) acrylamide, mono succinate [2-(first Base) acrylyl oxy-ethyl] ester, phthalic acid list [2-(methyl) acryloyl-oxyethyl] ester, ω-carboxy-polycaprolactone list (methyl) acrylate, 5-carboxyl dicyclo [2.2.1] hept-2-ene", 5,6-dicarboxyl dicyclo [2.2.1] hept-2-ene", 5-carboxyl- 5-methyl bicycle [2.2.1] hept-2-ene", 5-carboxyl-5-ethyl dicyclo [2.2.1] hept-2-ene", 5-carboxyl-6-methyl bicycle [2.2.1] hept-2-ene", 5-carboxyl-6-ethyl dicyclo [2.2.1] hept-2-ene", 5,6-dicarboxyl dicyclo [2.2.1] hept-2-ene" Acid anhydride, three ring [5.2.1.02,6] decane-8-base (methyl) acrylate, three ring [5.2.1.02,6] decane-8-base epoxide ethyl (first Base) acrylate, (methyl) acrylic acid methyl ester., (methyl) ethyl acrylate, (methyl) n-butyl acrylate, (methyl) acrylic acid Secondary butyl ester, (methyl) tert-butyl acrylate, (methyl) 2-EHA, (methyl) isodecyl acrylate, (methyl) third The positive lauryl of olefin(e) acid, (methyl) tridecyl acrylate, (methyl) acrylic acid n-octadecane base ester, (methyl) acrylate Ester, (methyl) acrylic acid 2-methyl cyclohexyl, (methyl) isobornyl acrylate, (methyl) acrylate, (methyl) third Olefin(e) acid 2-hydroxyl ethyl ester, (methyl) acrylic acid 3-hydroxypropyl acrylate, (methyl) acrylic acid 4-hydroxy butyl ester, diethylene glycol list (methyl) acrylic acid Ester, (methyl) acrylic acid 2,3-bis-hydroxypropyl acrylate, 2-(methyl) acrylyl oxy-ethyl glucosides, (methyl) phenyl acrylate, (methyl) Benzyl acrylate, (methyl) acrylic acid O-methoxy phenyl ester, (methyl) acrylic acid meta-methoxy phenyl ester, (methyl) acrylic acid are to first Epoxide phenyl ester, (methyl) acrylic acid 3-methyl-4-hydroxylphenyl ester, (methyl) acrylic acid 2-methyl-4-hydroxylphenyl ester, (methyl) third Olefin(e) acid dimethyl oxybenzene ester, ethyl maleate., DEF, diethyl itaconate, dicyclo [2.2.1] hept-2-ene", 5- Methyl bicycle [2.2.1] hept-2-ene", 5-ethyl dicyclo [2.2.1] hept-2-ene", 5-methoxyl group dicyclo [2.2.1] hept-2-ene", 5- Ethyoxyl dicyclo [2.2.1] hept-2-ene", 5,6-dimethoxy dicyclo [2.2.1] hept-2-ene", 5,6-diethoxy dicyclo [2.2.1] hept-2-ene", 5-tert-butoxycarbonyl dicyclo [2.2.1] hept-2-ene", 5-cyclohexyloxy carbonyl dicyclo [2.2.1] hept- 2-alkene, 5-phenyloxycarbonyl dicyclo [2.2.1] hept-2-ene", 5,6-bis-(tert-butoxycarbonyl) dicyclo [2.2.1] hept-2-ene", 5, 6-bis-(cyclohexyloxy carbonyl) dicyclo [2.2.1] hept-2-ene", 5-(2'-ethoxy) dicyclo [2.2.1] hept-2-ene", 5,6-dihydroxy Base dicyclo [2.2.1] hept-2-ene", 5,6-bis-(methylol) dicyclo [2.2.1] hept-2-ene", 5,6-bis-(2'-ethoxy) dicyclo [2.2.1] hept-2-ene", 5-hydroxy-5-methyl base dicyclo [2.2.1] hept-2-ene", 5-hydroxyl-5-ethyl dicyclo [2.2.1] hept-2- Alkene, 5-methylol-5-methyl bicycle [2.2.1] hept-2-ene", styrene, α-methyl styrene, o-methyl styrene, a methyl Styrene, p-methylstyrene, o-methoxystyrene, meta-methoxy styrene, to methoxy styrene, 1,3-butadiene, Isoprene, 2,3-dimethyl-1,3-butadiene, acrylonitrile, methacrylonitrile, vinyl chloride, vinylidene chloride, acrylamide, Methacrylamide, vinyl acetate, salicyl (methyl) acrylamide, resorcyl (methyl) acrylamide, to oxybenzene Base (methyl) acrylamide, 3,5-dimethyl-4-hydroxybenzyl (methyl) acrylamide, phenyl maleimide, hydroxy phenyl Maleimide, N-cyclohexylmaleimide, benzyl maleimide, trifluoromethyl (methyl) acrylate etc..They are permissible It is used alone, it is also possible to two or more is applied in combination.In order to regulate the transparency, thermostability, attaching, reagent resistance, electrical property, Refractive index, coating, developability, storage stability, mechanical strength etc., can be in the scope not having undesirable effect each characteristic In, use these unsaturated compounds with arbitrary proportion.
The weight average molecular weight (Mw) of the copolymer of the present invention is preferably 1500~50000 with polystyrene conversion, more excellent Elect 2000~20000 as.If weight average molecular weight is less than 1500, then may obtain smooth resin molding, residual after development Film rate may decline, it is also possible to the pattern form of obtained resin molding and thermostability can be caused to deteriorate, on the other hand, if weight Average molecular weight is more than 50000, then sensitivity may decline, and pattern form may deteriorate.
Additionally, the value of the molecular weight of the copolymer of the present invention is calculated by following manner: use gel permeation chromatography (GPC) It is measured with following condition, is calculated by polystyrene conversion.To start the time started from GPC to 21 minutes as calculating Scope, calculates weight average molecular weight and molecular weight distribution.
Post: Showa electrician (Shodex, registered trade mark) KF-801+KF-802+KF-802+KF-803
Column temperature: 40 DEG C
Leacheate: oxolane
Detector: differential refractometer (Showa electrician (registered trade mark) RI-101)
Flow velocity: 1mL/ minute
Have no particular limits for obtaining the copolyreaction of the copolymer of the present invention, radical polymerization, sun can be enumerated Ionic polymerization, anionic polymerisation, coordinated anionic polymerization etc..Specifically, with (a1) (methyl) crylic acid hydroxylphenyl ester and (a2) have the unsaturated compound of blocked isocyanate ester group be neccessary composition and the most preferably amount to 10 mass %~ The scope of 60 mass % contains in the reaction dissolvent of other unsaturated compounds, it is possible to use polymerization initiator is polymerized.Point The adjustment of son amount can realize by adjusting the usage amount of reaction dissolvent, the usage amount of initiator and polymerization temperature.It addition, point The adjustment of son amount can also realize by using the chain-transferring agent with thio-alcohol as representative.
As the object lesson of reaction dissolvent, can enumerate methanol, ethanol, 1-propanol, isopropanol, butanol, ethylene glycol, third Ketone, methyl ethyl ketone, methyl iso-butyl ketone (MIBK), oxolane, dioxane, toluene, dimethylbenzene, ethyl acetate, isopropyl acetate, second Acid n-propyl, butyl acetate, ethylene glycol monomethyl ether acetate, propylene glycol methyl ether acetate, ethylene glycol monoethylether acetate, second Methoxy butyl acetate, ethylene glycol monobutyl ether acetas, diethylene glycol monoethyl ether acetas, the diethyls such as acid 3-methoxybutyl Glycol monobutyl ether acetas, propylene glycol monomethyl ether, ethylene glycol mono-ether, 3-methoxybutanol, diethylene glycol monoethyl ether, diethylene glycol Monobutyl ether, dimethyl sulfoxide, dimethylformamide, dimethyl acetylamide, ethyl lactate, diethylene glycol ethyl methyl ether, diethyl Glycol dimethyl ether, methoxy methyl propionate, ethoxyl ethyl propionate etc..
As polymerization initiator, can enumerate such as: 2,2'-azos two (2,4-methyl pentane nitrile), 2,2'-azo two (2-butyronitrile), 2,2'-azodiisobutyronitrile, dimethyl-2,2'-azo-bis-iso-butyl, 1,1'-azo two (hexamethylene-1-nitrile) Deng azo initiator, or benzoyl peroxide, lauryl peroxide, caprylyl peroxide, acetyl peroxide, di-t-butyl mistake Oxide, tert-butyl cumyl peroxide, dicumyl peroxide, tert-butyl peroxy acetate, t-butyl peroxybenzoate Deng organic peroxide.
In the photosensitive polymer combination of the present invention, the compound with quinone diazido contained as neccessary composition [B] is photosensitizer, as long as have the compound of quinone diazido, then there is no particular limitation.Preferably can enumerate such as: energy Enough esters being condensed with 1,2-naphthoquinone two nitrine sulfamic acid halide by phenolic compound or alcohol compound and obtaining.Wherein, from From the point of view of the transparency of photonasty and resin molding, relative to the hydroxyl in phenolic compound or alcohol compound, more excellent Choosing makes to be equivalent to the 1 of 30~85mol%, the ester that 2-naphthoquinone two nitrine sulfamic acid halide is condensed, and most preferably makes to be equivalent to 50 ~the ester of the 1,2-naphthoquinone two nitrine sulfamic acid halide condensation of 70mol%.As this phenolic compound or alcohol compound Object lesson, 2,3,4-trihydroxybenzophenones, 2,4,6-trihydroxybenzophenones, 2,2', 4,4'-tetrahydroxys can be enumerated Benzophenone, 2,3,4,3'-tetrahydroxybenzophenone, 2,3,4,4'-tetrahydroxybenzophenone, 2,3,4,2'-tetrahydroxy-4'- Methyl benzophenone, 2,3,4,4'-tetrahydroxy-3'-methoxy benzophenone, 2,3,4,2', 6'-pentahydroxybenzophenone, 2, 4,6,3', 4', 5'-hexahydroxy benzophenone, 3,4,5,3', 4', 5'-hexahydroxy benzophenone, 2-methyl-2-(2,4-dihydroxy Base phenyl)-4-(4-hydroxy phenyl)-7-hydroxychroman, 2-[double { (5-isopropyl-4-hydroxy-2-methyl) phenyl } methyl] benzene Phenol, 1-[1-(3-{1-(4-hydroxy phenyl)-1-Methylethyl }-4,6-dihydroxy phenyl)-1-Methylethyl]-3-(1-(3- { 1-(4-hydroxy phenyl)-1-Methylethyl }-4,6-dihydroxy phenyl)-1-Methylethyl) benzene, double { 1-(the 4-hydroxy benzenes of 4,6- Base)-1-Methylethyl double (2,4-dihydroxy phenyl) methane of-1,3-Benzodiazepines, double (p-hydroxybenzene) methane, three (to hydroxyl Phenyl) methane, 1,1,1-tri-(p-hydroxybenzene) ethane, double (2,3,4-hydroxy phenyl) methane, double (the 2,3,4-trihydroxy of 2,2- Phenyl) propane, 1,1,3-tri-(2,5-dimethyl-4-hydroxy phenyl)-3-phenyl-propane, 1-[1-(4-hydroxy phenyl) isopropyl Base]-4-[1,1-double (4-hydroxy phenyl) ethyl] benzene, double (2,5-dimethyl-4-hydroxy phenyl)-2-hydroxy phenyl methane, 3, 3,3', 3'-tetramethyl-1,1'-spirobindene-5,6,7,5', 6', 7'-hexanol, 2,2,4-trimethyl-7,2', 4'-trihydroxy is yellow Alkane etc..They may be used alone, two or more kinds can also be used in combination.As having the compound [B] of quinone diazido, excellent Select the 1,2-naphthoquinone two nitrine sulfonic acid of 1-[1-(4-hydroxy phenyl) isopropyl]-4-[double (4-hydroxy phenyl) ethyl of 1,1-] benzene Ester.
In the photosensitive polymer combination of the present invention, relative to 100 mass parts copolymers [A] (solid phase components), have The addition of the compound [B] of quinone diazido is preferably 5 mass parts~60 mass parts, more preferably 10 mass parts~50 matter Amount part.If there is the addition of compound [B] of quinone diazido less than 5 mass parts, then may result in development the best, another Aspect, if more than 60 mass parts, then may result in development the best, also can make the transparency of resin molding, insulating properties and flatness It is deteriorated.
Although the photosensitive polymer combination of the present invention contains copolymer [A] and has the compound [B] of quinone diazido As neccessary composition, but in the range of the effect not damaging the present invention, as required, UV absorbent, increasing can be contained Sense agent, sensitizing auxiliary agent, plasticizer, thickening agent, organic solvent, dispersant, defoamer, surfactant, attaching auxiliary agent, temperature-sensitive Property acid-producing cpd and copolymer [A] and there is the compound that compound [B] cross-linking reaction of quinone diazido obtains.
It addition, the photosensitive polymer combination of the present invention is by by copolymer [A] and the chemical combination with quinone diazido Thing [B] and other compositions that can arbitrarily add as above uniformly mix and prepare, it is possible to suitable molten to be dissolved in Agent uses with solution state.
As solvent, it is possible to use make copolymer [A] and there is the compound [B] of quinone diazido and can arbitrarily add Other composition uniform dissolution added and the solvent not reacted with each composition, can enumerate and can be used in preparation altogether with above-mentioned conduct Identical solvent illustrated in the solvent of polymers [A].Wherein, it is contemplated that the dissolubility of each composition and the reactivity of each composition, painting The aspects such as the easy degree that film is formed, it may be preferred to use diethylene glycol ethyl methyl ether, diethylene glycol dimethyl ether, propylene glycol list Methyl ether, propylene glycol methyl ether acetate, methoxybutyl acetas, methoxy methyl propionate and ethoxyl ethyl propionate.It addition, In order to improve thickness uniformity in face, can N-Methyl pyrrolidone used along with these solvents, gamma-butyrolacton, N, The high boiling solvents such as N-dimethyl acetylamide.
During with the photosensitive polymer combination of the solution state preparation present invention, relative to copolymer [A] (solid phase components) and The compound [B] with quinone diazido and total amount 100 mass parts of other compositions that can arbitrarily add, it is possible to 30 matter Amount part~4000 mass parts, preferably 50 mass parts~3000 mass parts are added above-mentioned solvent and (be can be used alone, it is also possible to 2 Plant combination of the above to use).
Owing to the coating of photosensitive polymer combination, developability, curable and the storage stability of the present invention are good, logical Cross and use this photosensitive polymer combination, it is possible to form thermochromism transparent, resistance to and the resin molding of excellent electrical property.This resin Film can be applicable to be formed the protecting film of electronic unit, planarization film or interlayer dielectric, and forms lenticule or micro- Lens array, forms light scattered reflection film, tropism control projection or the interval of liquid crystal display cells, forms color filter or light wave Guide passage.
Below the forming method of the resin molding of the photosensitive polymer combination employing the present invention is illustrated.First, At glass substrate, silicon chip and be formed over their surface on the substrate of various metal, the photonasty tree of the coating present invention Oil/fat composition so that it is be dried, forms radiosensitivity resin molding.As the coating process of photosensitive polymer combination, there is no spy Other restriction, can enumerate the suitable methods such as spraying process, rolling method, spin-coating method, stick coating method, slot coated method.Drying condition Kind according to each composition, use ratio etc. and different, but can be set to carry out 30 seconds~30 at 60 DEG C~110 DEG C About minute.
Then, on the resin molding formed, across having the mask of specific pattern, after irradiating with lonizing radiation, by making Carry out development treatment with developer solution, the formation of pattern can be carried out.As the lonizing radiation now used, such as g line can be enumerated (wavelength is 436nm), i line (wavelength is 365nm), KrF excimer laser, ArF excimer laser, X-ray, electron beam etc., make For its light source, low pressure mercury lamp, high voltage mercury lamp, ultrahigh pressure mercury lamp, chemical lamp, excimer laser generating means etc. can be enumerated.Make For the developer solution for development treatment, it is possible to use such as sodium hydroxide, potassium hydroxide, sodium silicate, sodium metasilicate, ammonia, ethamine, N-propylamine, diethylamine, diethylaminoethanol, di-n-propylamine, triethylamine, methyl-diethyl-amine, dimethylethanolamine, triethanolamine, Tetramethylammonium hydroxide, tetraethyl ammonium hydroxide, pyrroles, piperidines, 1,8-diazabicyclo [5,4,0]-ten one carbon-7-alkene, 1, The aqueous solution of the alkali (alkali compounds) such as 5-diazabicyclo [4,3,0]-nonyl-5-alkene.Furthermore, it is possible to water-soluble by described alkali Liquid is added with the water-miscible organic solvent such as methanol, ethanol or the aqueous solution of surfactant in right amount or is dissolved with sense of the present invention The various organic solvents of photosensitive resin composition use as developer solution.It addition, as developing method, it is possible to use full liquid method (liquid is containedMethod), infusion process, shake infusion process, the suitable method such as spray process.Developing time now is according to photoresist The composition of compositions and different, but such as 30 seconds~120 seconds can be set to.
It follows that for the resin molding forming pattern, it is preferred that such as utilize circulating water to clean and be rinsed processing, It is more preferable that by irradiating with lonizing radiation comprehensively, carry out in this resin molding residual has quinone diazido The resolution process of compound [B].Constitute the reason of extinction owing to having the compound [B] of quinone diazido, therefore pass through afterwards The transparency of exposure resin molding is improved.
It follows that be by utilizing hot plate (hot plate), baking oven etc. to carry out heat treated (rear baking process), thus can To carry out cured.The sintering temperature of this cured is such as 120 DEG C~250 DEG C.Heat time heating time is according to heating machine Kind and different, but, such as when carrying out heat treated on hot plate, can be set to 5 minutes~30 minutes, in an oven When carrying out heat treated, 30 minutes~90 minutes can be set to.Particularly when forming lenticule and tropism control projection, also The substep baking process (step baking method) carrying out more than twice heating process can be used, specifically, at pattern Carry out initial stage heating at a temperature of more than the glass transition temperature of the resin molding changed and make pattern flow, because surface tension becomes Hemispherical, then, heating cross-links at higher temperatures, thus forms specific shape.
It is possible to be formed on a surface of a substrate with as the protecting film of target, planarization film, interlayer dielectric, micro- The various uses such as mirror or microlens array, light scattered reflection film, tropism control projection, interval, color filter, optical waveguide are relative Pattern-like thin film.The resin molding being thusly-formed, its thermochromism transparent, resistance to and electrical characteristics are excellent.
[embodiment]
Embodiment is illustrated below and the present invention is specifically explained by comparative example, but the invention is not limited in following reality Execute example.
<synthesis of copolymer>
[embodiment 1]
In the flask equipped with reflux condenser and agitator, add 42 mass parts methacrylic acid para hydroxybenzene esters, 58 Mass parts 2-(O-[1'-methyl propylene amino] carboxyamino) ethylmethyl acrylate, 400 mass parts propylene glycol monomethyl ethers Acetas and 6 mass parts 2,2'-azodiisobutyronitrile, after replacing with nitrogen, make liquid temperature rise to 80 DEG C while stirring, at 80 DEG C Lower reaction 6 hours.Confirmed the disappearance of monomer by gel permeation chromatography, be warming up to 100 DEG C, carry out ageing in 30 minutes.80 DEG C, decompression under conditions of, be removed by distillation propylene glycol methyl ether acetate, solid phase components concentration be adjusted to 30 mass %, Obtain the resin solution (S-1) containing copolymer [A-1].
The copolymer [A-1] contained in resin solution with the weight average molecular weight (Mw) of polystyrene conversion for 8700, molecule Amount distribution (Mw/Mn) is 3.5.
[embodiment 2]
In the flask equipped with reflux condenser and agitator, add 41 mass parts methacrylic acid para hydroxybenzene esters, 59 Mass parts 2-[(3,5-dimethyl pyrazole oxazolyl) carbonylamino] ethylmethyl acrylate, 400 mass parts propylene glycol monomethyl ether second Acid esters and 6 mass parts 2,2'-azodiisobutyronitrile, react in the same manner as example 1, obtain containing copolymer The resin solution (S-2) of [A-2].
The copolymer [A-2] contained in resin solution with the weight average molecular weight (Mw) of polystyrene conversion for 8800, molecule Amount distribution (Mw/Mn) is 3.5.
[embodiment 3]
In the flask equipped with reflux condenser and agitator, add 36 mass parts methacrylic acid para hydroxybenzene esters, 51 Mass parts 2-(O-[1'-methyl propylene amino] carboxyamino) ethylmethyl acrylate, 13 mass parts methacrylic acids are just Butyl ester, 400 mass parts propylene glycol methyl ether acetates and 6 mass parts 2,2'-azodiisobutyronitrile, with same as in Example 1 Mode is reacted, and obtains the resin solution (S-3) containing copolymer [A-3].
The copolymer [A-3] contained in resin solution with the weight average molecular weight (Mw) of polystyrene conversion for 8300, molecule Amount distribution (Mw/Mn) is 3.3.
[comparative example 1]
In the flask equipped with reflux condenser and agitator, add 56 mass parts methacrylic acid para hydroxybenzene esters, 44 Mass parts glycidyl methacrylate, 600 mass parts propylene glycol methyl ether acetates and 6 mass parts 2,2'-azos two are different Butyronitrile, after replacing with nitrogen, makes liquid temperature rise to 80 DEG C while stirring, reacts 6 hours at 80 DEG C.Pass through gel permeation chromatography Method confirms the disappearance of monomer, is warming up to 100 DEG C, carries out ageing in 30 minutes.100 DEG C, decompression under conditions of, be removed by distillation Propylene glycol methyl ether acetate, is adjusted to 30 mass % by solid phase components concentration, obtains the resin containing copolymer [A'-4] molten Liquid (S-4).
The copolymer [A'-4] contained in resin solution with the weight average molecular weight (Mw) of polystyrene conversion for 8400, molecule Amount distribution (Mw/Mn) is 3.1.
<evaluation>
(1) transparency
On the glass substrate, coating resin solution (S-1)~(S-4) make thickness be 3 μm, are dried 30 with 80 DEG C in an oven Minute.For the obtained glass substrate with resin molding, use spectrophotometer, with glass substrate as blank, survey Minimum transmitance under standing wave a length of 400~800nm.Transmitance is the biggest, and the transparency is the highest.Result is shown in Table 1.
(2) curable
On the hot plate of 150 DEG C, coating resin solution (S-1)~(S-4) make thickness be about 0.5mm, measure to gelation The required time.Time is the shortest, and curable is the best.Result is shown in Table 1.
(3) electrical property
On metallic substrates, coating resin solution (S-1)~(S-4) make thickness be 3 μm, are dried 30 with 80 DEG C in an oven Minute.In the baking oven of 200 DEG C, carry out dry film 30 minutes being heating and curing.Solidification obtained by measuring under 1MHz The dielectric constant of film.Dielectric constant is the least, and electrical property is the best.Result is shown in Table 1.
[table 1]
Embodiment 1 Embodiment 2 Embodiment 3 Comparative example 1
The transparency 99% 99% 99% 99%
Gelation time 85 seconds 108 seconds 93 seconds 163 seconds
Dielectric constant 3.6 3.3 3.5 4.5
<preparation of photosensitive polymer combination>
[embodiment 4]
Resin solution (S-1) that 100 mass parts are obtained in embodiment 1,6.25 mass parts 1-[1-(4-hydroxy phenyl) Isopropyl]-4-[1,1-double (4-hydroxy phenyl) ethyl] benzene-1,2-naphthoquinone two nitrine-5-sulphonic acid ester and 75 mass parts propylene glycol Methyl ether acetate mixed dissolution, filters with the membrane filter of 0.2 μm, prepares the photosensitive polymer combination of solution state (S-5)。
[embodiment 5]
Use the resin solution (S-2) obtained in example 2, in the way of the same as in Example 4, prepare solution state Photosensitive polymer combination (S-6).
[embodiment 6]
Use the resin solution (S-3) obtained in embodiment 3, in the way of the same as in Example 4, prepare solution state Photosensitive polymer combination (S-7).
[comparative example 2]
Use the resin solution (S-4) obtained in comparative example 1, in the way of the same as in Example 4, prepare solution state Photosensitive polymer combination (S-8).
<evaluation>
(1) storage stability
After photosensitive polymer combination (S-5)~(S-8) at room temperature being preserved 1 month, measure its viscosity.Additionally, it is viscous Degree uses E type viscometer to be measured at 25 DEG C.Relative to viscosity when just preparing, after at room temperature preserving 1 month The climbing of viscosity be designated as zero in the situation less than 10%, the situation more than 10% is designated as ×.Result is shown in Table 2.
(2) coating
On the glass substrate, photosensitive resin coating compositions (S-5)~(S-8) make thickness be 3 μm, in an oven with 80 DEG C be dried 30 minutes.All photosensitive polymer combination all obtains transparent resin film in uniform thickness, and coating is good (zero).
(3) developability
The resin molding being dried is exposed with ultrahigh pressure mercury lamp across erect image mask (Positive pattern mask), Within in the aqueous solution of the Tetramethylammonium hydroxide that impregnated in 2.38 weight % 1 minute, develop, be rinsed by purified water.All Photosensitive polymer combination has all transferred erect image, and developability is good (zero).
(4) transparency
The resin molding being dried does not carries out blanket exposure across erect image mask, carries out heating in 30 minutes with 200 DEG C in an oven Solidification.For the obtained glass substrate with cured resin film, use spectrophotometer, right with glass substrate for blank According to, measuring wavelength is the minimum transmitance under 400~800nm.Transmitance is the biggest, and the transparency is the highest.Result is shown in Table 2.
(5) resistance to thermochromism
After carrying out 30 minutes being heating and curing at 200 DEG C, then at 230 DEG C, carry out 10 minutes heat treated, with glass base Plate is blank, and measuring wavelength is transmitance during 400nm.Transmitance is the biggest, and resistance to thermochromism is the highest.Result is shown in table 2 In.
Table 2
Embodiment 4 Embodiment 5 Embodiment 6 Comparative example 2
Storage stability
Coating
Developability
The transparency 99% 99% 99% 99%
Heat-resisting amyloidogenic 84% 88% 85% 70%

Claims (8)

1. a photosensitive polymer combination, it is characterised in that containing copolymer and the compound with quinone diazido, described Copolymer comprises from the repetitive of (methyl) crylic acid hydroxylphenyl ester with from the unsaturation with blocked isocyanate ester group The repetitive of compound.
2. photosensitive polymer combination as claimed in claim 1, it is characterised in that containing described in 30mol%~90mol% Described from having blocked isocyanate from the repetitive of (methyl) crylic acid hydroxylphenyl ester and 10mol%~70mol% The repetitive of the unsaturated compound of ester group.
3. photosensitive polymer combination as claimed in claim 1 or 2, it is characterised in that described in there is blocked isocyanate ester group Unsaturated compound be block (methyl) acrylic acid 2-isocyano group ethyl ester.
4. photosensitive polymer combination as claimed in claim 1 or 2, it is characterised in that described block is by methyl ethyl ketone The block that oxime causes.
5. photosensitive polymer combination as claimed in claim 1 or 2, it is characterised in that described in there is blocked isocyanate ester group Unsaturated compound be 2-(O-[1'-methyl propylene amino] carboxyamino) ethyl (methyl) acrylate.
6. photosensitive polymer combination as claimed in claim 1 or 2, it is characterised in that described common relative to 100 mass parts Polymers, it contains the compound described in 5~60 mass parts with quinone diazido.
7. photosensitive polymer combination as claimed in claim 1 or 2, it is characterised in that relative to the composition beyond solvent Total amount 100 mass parts, it contains the solvent of 30~4000 mass parts.
8. a resin molding, it is characterised in that it is for being applied to base by the photosensitive polymer combination described in claim 1 or 2 On plate, it is dried and obtains.
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